(Cat? OR feline) AND NOT dog?
Cat? W/5 behavior
(Cat? OR feline) AND traits
Cat AND charact*

This guide provides a more detailed description of the syntax that is supported along with examples.

This search box also supports the look-up of an IP.com Digital Signature (also referred to as Fingerprint); enter the 72-, 48-, or 32-character code to retrieve details of the associated file or submission.

Concept Search - What can I type?

For a concept search, you can enter phrases, sentences, or full paragraphs in English. For example, copy and paste the abstract of a patent application or paragraphs from an article.

Concept search eliminates the need for complex Boolean syntax to inform retrieval. Our Semantic Gist engine uses advanced cognitive semantic analysis to extract the meaning of data. This reduces the chances of missing valuable information, that may result from traditional keyword searching.

Acoustic Isolation of a Print Hammer Head From a Print Hammer Body

Publishing Venue

IBM

Related People

Vitek, EJ: AUTHOR

Abstract

The sound level of a print hammer is reduced by introducing dampening material between a print hammer head and a print hammer body with the dampening material producing a non-stiff connection between the print hammer head and the print hammer body to attenuate vibration of the print hammer body. A dampening material 1 is disposed between a print hammer head 2, which is formed of metal, and a print hammer body 3, which is formed of plastic. The dampening material 1 may be any suitable elastomer such as urethane, for example. The dampening material 1 should have a much lower melting point than the print hammer body 3 to be used with an injection molding process. The print hammer head 2 may have additional dampening material 4 therein in its tip portion. The dampening material 4 could be brass, for example.

Country

United States

Language

English (United States)

This text was extracted from a PDF file.

At least one non-text object (such as an image or picture) has been suppressed.

This is the abbreviated version, containing approximately
79% of the total text.

Page 1 of 2

Acoustic Isolation of a Print Hammer Head From a Print Hammer Body

The sound level of a print hammer is reduced by introducing dampening
material between a print hammer head and a print hammer body with the
dampening material producing a non-stiff connection between the print hammer
head and the print hammer body to attenuate vibration of the print hammer body.
A dampening material 1 is disposed between a print hammer head 2, which is
formed of metal, and a print hammer body 3, which is formed of plastic. The
dampening material 1 may be any suitable elastomer such as urethane, for
example. The dampening material 1 should have a much lower melting point
than the print hammer body 3 to be used with an injection molding process. The
print hammer head 2 may have additional dampening material 4 therein in its tip
portion. The dampening material 4 could be brass, for example. If desired, the
dampening material 1 could terminate at the edge of the print hammer body 3
rather than extending therebeyond to partially surround a portion 5 of the print
hammer head 2 extending beyond the print hammer body 3. If desired, the
dampening material 1 could be an annular sleeve surrounding a portion 6 of the
print hammer head 2. In this arrangement, the annular sleeve of the dampening
material 1 would preferably have a larger diameter than the diameter of the
portion 5 of the print hammer head 2 so that the print hammer head 2 would abut
the dampening material 1. The dampening materi...